If your Toyota 08600 radio features factory steering wheel controls (SWC) or a physical AUX port console link, you will likely find a third behind the dash. Standard 20-Pin SWC / Aux Pinout Pin 6: Steering Wheel Control Signal (SW1) Pin 7: Steering Wheel Control Signal (SW2) Pin 8: Steering Wheel Control Ground (SWG) Pin 15: Auxiliary Audio Left Channel (+) Pin 16: Auxiliary Audio Right Channel (+) Pin 17: Auxiliary Audio Ground / Shield (-) Step-by-Step Installation: Factory to Aftermarket
Instead of cutting the original plugs off your dashboard wiring loom, purchase a . This allows you to splice the new radio wires to the adapter on a workbench, preserving your vehicle's factory wiring and resale value. 2. Verify Voltages with a Multimeter
The clock and radio station presets save after turning the key off and back on. Toyota 08600 Radio Wiring Diagram
Blue with a Yellow stripe (or solid Yellow) Accessory/Ignition (12V+): Gray (or solid Red) Ground: Brown (or solid Black) Illumination: Green Front Left Speaker: Pink (+) and Purple (-) Front Right Speaker: Light Green (+) and Blue (-) Rear Left Speaker: Black (+) and Yellow (-) Rear Right Speaker: Red (+) and White (-)
Never assume the factory amp is your friend. If your truck has the 08600 and a separate silver amp box under the seat, do yourself a favor: bypass it. Run fresh speaker wire from your new radio's harness directly to the speaker cutouts. The 08600's internal amp was weak (only 7W RMS), and the external amp uses a common-ground system that will fry most modern head units. If your Toyota 08600 radio features factory steering
Most of these units utilize the standard connector configuration. Standard Toyota Wiring Color Codes (1987+)
The first and most critical step is understanding that "08600" is the start of a family of part numbers, not a single standard. Before you look for a diagram, you must find the on your unit. If your truck has the 08600 and a
The Constant Power (Battery +12V) and Switched Power (Accessory) wires are reversed. Ensure the aftermarket Yellow wire is connected to the Toyota Blue/Yellow wire, and the aftermarket Red wire is connected to the Toyota Gray wire.